| 各向异性介质的平行平板干涉 |
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| 引用本文： | 沈为民,金永兴,康娟,孙一翎.各向异性介质的平行平板干涉[J].大学物理,2008,27(8). |
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| 作者姓名： | 沈为民 金永兴 康娟 孙一翎 |
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| 作者单位： | 中国计量学院,光学与电子科技学院,浙江,杭州,310018 |
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| 基金项目： | 国家质量监督检验检疫总局资助项目 |
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| 摘 要： | 提出了各向异性介质平行平板干涉中的相位差计算方法.证明了e光干涉产生的条纹为严格的椭圆曲线,椭圆长短轴的比值等于o光主折射率与e光主折射率之比,而与晶体厚度、干涉级等参数无关.拍摄了实验干涉图,并用最小二乘法对干涉条纹进行椭圆曲线拟合,结果与理论完全一致.本文提出的方法可用于晶体主折射率比值的精确简便测量.
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| 关 键 词： | 平行平板干涉 各向异性介质 折射率测量 |
Interference with an anisotropic medium parallel plate |
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| SHEN Wei-min,JIN Yong-xing,KANG Juan,SUN Yi-ling.Interference with an anisotropic medium parallel plate[J].College Physics,2008,27(8). |
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| Authors: | SHEN Wei-min JIN Yong-xing KANG Juan SUN Yi-ling |
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| Abstract: | A calculation method for phase difierence in interference with an anisotropic medium parallel plate is proposed.It has been proved that fringes of extraordinary waves are ellipses.The ratio of two semi-axes of the ellipse is equal to the ratio of two principal refractive indices.The experiment with a lithium niobate crystal has been completed and which is in agreement with the theoretical result. |
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| Keywords: | parallel plate interference anisotropic medium refractive index measurement |
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